Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
[linux-2.6] / drivers / gpu / drm / i915 / i915_drv.c
1 /* i915_drv.c -- i830,i845,i855,i865,i915 driver -*- linux-c -*-
2  */
3 /*
4  *
5  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6  * All Rights Reserved.
7  *
8  * Permission is hereby granted, free of charge, to any person obtaining a
9  * copy of this software and associated documentation files (the
10  * "Software"), to deal in the Software without restriction, including
11  * without limitation the rights to use, copy, modify, merge, publish,
12  * distribute, sub license, and/or sell copies of the Software, and to
13  * permit persons to whom the Software is furnished to do so, subject to
14  * the following conditions:
15  *
16  * The above copyright notice and this permission notice (including the
17  * next paragraph) shall be included in all copies or substantial portions
18  * of the Software.
19  *
20  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
21  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
23  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
24  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
25  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
26  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27  *
28  */
29
30 #include <linux/device.h>
31 #include "drmP.h"
32 #include "drm.h"
33 #include "i915_drm.h"
34 #include "i915_drv.h"
35
36 #include "drm_pciids.h"
37 #include <linux/console.h>
38
39 static unsigned int i915_modeset = -1;
40 module_param_named(modeset, i915_modeset, int, 0400);
41
42 unsigned int i915_fbpercrtc = 0;
43 module_param_named(fbpercrtc, i915_fbpercrtc, int, 0400);
44
45 static struct drm_driver driver;
46
47 static struct pci_device_id pciidlist[] = {
48         i915_PCI_IDS
49 };
50
51 #if defined(CONFIG_DRM_I915_KMS)
52 MODULE_DEVICE_TABLE(pci, pciidlist);
53 #endif
54
55 static int i915_suspend(struct drm_device *dev, pm_message_t state)
56 {
57         struct drm_i915_private *dev_priv = dev->dev_private;
58
59         if (!dev || !dev_priv) {
60                 printk(KERN_ERR "dev: %p, dev_priv: %p\n", dev, dev_priv);
61                 printk(KERN_ERR "DRM not initialized, aborting suspend.\n");
62                 return -ENODEV;
63         }
64
65         if (state.event == PM_EVENT_PRETHAW)
66                 return 0;
67
68         pci_save_state(dev->pdev);
69
70         i915_save_state(dev);
71
72         /* If KMS is active, we do the leavevt stuff here */
73         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
74                 if (i915_gem_idle(dev))
75                         dev_err(&dev->pdev->dev,
76                                 "GEM idle failed, resume may fail\n");
77                 drm_irq_uninstall(dev);
78         }
79
80         intel_opregion_free(dev);
81
82         if (state.event == PM_EVENT_SUSPEND) {
83                 /* Shut down the device */
84                 pci_disable_device(dev->pdev);
85                 pci_set_power_state(dev->pdev, PCI_D3hot);
86         }
87
88         return 0;
89 }
90
91 static int i915_resume(struct drm_device *dev)
92 {
93         struct drm_i915_private *dev_priv = dev->dev_private;
94         int ret = 0;
95
96         pci_set_power_state(dev->pdev, PCI_D0);
97         pci_restore_state(dev->pdev);
98         if (pci_enable_device(dev->pdev))
99                 return -1;
100         pci_set_master(dev->pdev);
101
102         i915_restore_state(dev);
103
104         intel_opregion_init(dev, 1);
105
106         /* KMS EnterVT equivalent */
107         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
108                 mutex_lock(&dev->struct_mutex);
109                 dev_priv->mm.suspended = 0;
110
111                 ret = i915_gem_init_ringbuffer(dev);
112                 if (ret != 0)
113                         ret = -1;
114                 mutex_unlock(&dev->struct_mutex);
115
116                 drm_irq_install(dev);
117         }
118
119         return ret;
120 }
121
122 static int __devinit
123 i915_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
124 {
125         return drm_get_dev(pdev, ent, &driver);
126 }
127
128 static void
129 i915_pci_remove(struct pci_dev *pdev)
130 {
131         struct drm_device *dev = pci_get_drvdata(pdev);
132
133         drm_put_dev(dev);
134 }
135
136 static int
137 i915_pci_suspend(struct pci_dev *pdev, pm_message_t state)
138 {
139         struct drm_device *dev = pci_get_drvdata(pdev);
140
141         return i915_suspend(dev, state);
142 }
143
144 static int
145 i915_pci_resume(struct pci_dev *pdev)
146 {
147         struct drm_device *dev = pci_get_drvdata(pdev);
148
149         return i915_resume(dev);
150 }
151
152 static struct vm_operations_struct i915_gem_vm_ops = {
153         .fault = i915_gem_fault,
154         .open = drm_gem_vm_open,
155         .close = drm_gem_vm_close,
156 };
157
158 static struct drm_driver driver = {
159         /* don't use mtrr's here, the Xserver or user space app should
160          * deal with them for intel hardware.
161          */
162         .driver_features =
163             DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | /* DRIVER_USE_MTRR |*/
164             DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_GEM,
165         .load = i915_driver_load,
166         .unload = i915_driver_unload,
167         .open = i915_driver_open,
168         .lastclose = i915_driver_lastclose,
169         .preclose = i915_driver_preclose,
170         .postclose = i915_driver_postclose,
171         .suspend = i915_suspend,
172         .resume = i915_resume,
173         .device_is_agp = i915_driver_device_is_agp,
174         .enable_vblank = i915_enable_vblank,
175         .disable_vblank = i915_disable_vblank,
176         .irq_preinstall = i915_driver_irq_preinstall,
177         .irq_postinstall = i915_driver_irq_postinstall,
178         .irq_uninstall = i915_driver_irq_uninstall,
179         .irq_handler = i915_driver_irq_handler,
180         .reclaim_buffers = drm_core_reclaim_buffers,
181         .get_map_ofs = drm_core_get_map_ofs,
182         .get_reg_ofs = drm_core_get_reg_ofs,
183         .master_create = i915_master_create,
184         .master_destroy = i915_master_destroy,
185 #if defined(CONFIG_DEBUG_FS)
186         .debugfs_init = i915_gem_debugfs_init,
187         .debugfs_cleanup = i915_gem_debugfs_cleanup,
188 #endif
189         .gem_init_object = i915_gem_init_object,
190         .gem_free_object = i915_gem_free_object,
191         .gem_vm_ops = &i915_gem_vm_ops,
192         .ioctls = i915_ioctls,
193         .fops = {
194                  .owner = THIS_MODULE,
195                  .open = drm_open,
196                  .release = drm_release,
197                  .ioctl = drm_ioctl,
198                  .mmap = drm_gem_mmap,
199                  .poll = drm_poll,
200                  .fasync = drm_fasync,
201 #ifdef CONFIG_COMPAT
202                  .compat_ioctl = i915_compat_ioctl,
203 #endif
204         },
205
206         .pci_driver = {
207                  .name = DRIVER_NAME,
208                  .id_table = pciidlist,
209                  .probe = i915_pci_probe,
210                  .remove = i915_pci_remove,
211 #ifdef CONFIG_PM
212                  .resume = i915_pci_resume,
213                  .suspend = i915_pci_suspend,
214 #endif
215         },
216
217         .name = DRIVER_NAME,
218         .desc = DRIVER_DESC,
219         .date = DRIVER_DATE,
220         .major = DRIVER_MAJOR,
221         .minor = DRIVER_MINOR,
222         .patchlevel = DRIVER_PATCHLEVEL,
223 };
224
225 static int __init i915_init(void)
226 {
227         driver.num_ioctls = i915_max_ioctl;
228
229         /*
230          * If CONFIG_DRM_I915_KMS is set, default to KMS unless
231          * explicitly disabled with the module pararmeter.
232          *
233          * Otherwise, just follow the parameter (defaulting to off).
234          *
235          * Allow optional vga_text_mode_force boot option to override
236          * the default behavior.
237          */
238 #if defined(CONFIG_DRM_I915_KMS)
239         if (i915_modeset != 0)
240                 driver.driver_features |= DRIVER_MODESET;
241 #endif
242         if (i915_modeset == 1)
243                 driver.driver_features |= DRIVER_MODESET;
244
245 #ifdef CONFIG_VGA_CONSOLE
246         if (vgacon_text_force() && i915_modeset == -1)
247                 driver.driver_features &= ~DRIVER_MODESET;
248 #endif
249
250         return drm_init(&driver);
251 }
252
253 static void __exit i915_exit(void)
254 {
255         drm_exit(&driver);
256 }
257
258 module_init(i915_init);
259 module_exit(i915_exit);
260
261 MODULE_AUTHOR(DRIVER_AUTHOR);
262 MODULE_DESCRIPTION(DRIVER_DESC);
263 MODULE_LICENSE("GPL and additional rights");